It is from May 1 to October 31, 2010 _____ the World Expo 2010 will be held, _____ is a great event for the Chinese people.
A. when; that B. that; when C. which; when D. that; which
—Who gave you the message?
—A man _____ himself Mr. Wang.
A. calling B. called C. is called D. calls
_____ more energies to my study, I would be sitting in a comfortable office now.
A. If I devoted B. Had I devoted C. Would I devote D. Should I devote
—Excuse me, I wonder if you can help me. I ____ my iphone.
—But where did you lose it?
A. have lost B. lost C. had lost D. lose
—What do you think of the concert?
—I really enjoy it. I didn't expect it was ____ wonderful.
A. as B. more C. most D. very
A growing anxiety is disturbing the public _____ the economy will continuously decline.
A. which B. that C. why D. what
